reverted:
--- /home/laney/temp/good	2017-02-07 11:35:35.655975155 +0000
+++ /home/laney/temp/bad	2017-02-07 11:34:27.390298174 +0000
@@ -20,49 +20,11 @@
 application/x-gst-av-wsaud
 application/x-gst-av-wsvqa
 application/x-yuv4mpeg, y4mversion=(int)2
-audio/AMR
-audio/AMR-WB
-audio/G722
-audio/mpeg, mpegversion=(int){ 2, 4 }, stream-format=(string){ raw, adts, adif }
-audio/mpeg, mpegversion=(int)4, stream-format=(string)loas
-audio/mpeg, mpegversion=(int)1, layer=(int){ 3, 2, 1 }
-audio/ms-gsm
-audio/qcelp
-audio/x-ac3
-audio/x-adpcm, layout=(string){ 4xm, adx, ct, ea, ea-maxis-xa, ea-r1, ea-xas, g726, g721, amv, dk3, dk4, ea-eacs, ea-sead, iss, quicktime, smjpeg, dvi, westwood, microsoft, sbpro2, sbpro3, sbpro4, swf, thp, xa, yamaha, ea-r3 }
 audio/x-aiff
-audio/x-alac
-audio/x-dpcm, layout=(string){ interplay, roq, sol, xan }
-audio/x-dts
-audio/x-eac3
-audio/x-ffmpeg-parsed-ape
-audio/x-ffmpeg-parsed-musepack, streamversion=(int){ 7, 8 }
-audio/x-flac
-audio/x-gsm
-audio/x-gst-av-mp3adu
-audio/x-gst-av-mp3on4
-audio/x-gst-av-vmdaudio
-audio/x-gst-av-ws_snd1
-audio/x-imc
-audio/x-mace, maceversion=(int){ 3, 6 }
-audio/x-mlp
 audio/x-musepack, streamversion=(int){ 7, 8 }
-audio/x-nellymoser
-audio/x-pn-realaudio, raversion=(int){ 8, 1, 2 }
-audio/x-qdm2
-audio/x-shorten
-audio/x-sipro
 audio/x-smpte-302m
-audio/x-true-hd
-audio/x-truespeech
-audio/x-tta
 audio/x-ttafile
-audio/x-twin-vq
-audio/x-vnd.sony.atrac1
-audio/x-vnd.sony.atrac3
 audio/x-voc
-audio/x-wma, wmaversion=(int){ 4, 3, 1, 2 }
-audio/x-wms
 image/bmp
 image/gif
 image/jp2
@@ -156,5 +118,4 @@
 video/x-wmv, wmvversion=(int)3, format=(string){ MSS2, WVC1, WMVA, WMV3 }
 video/x-wmv, wmvversion=(int){ 1, 2 }
 video/x-xan, wcversion=(int){ 3, 4 }
-video/x-zlib
 video/x-zmbv
